Brook Floater vs King Oyster

Alasmidonta varicosa compared with Pleurotus eryngii

Key Differences

• Brook Floater is Vulnerable while King Oyster is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	King Oyster
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Agaricomycetes (Mushrooms)
Order	Unionida (Unionida)	Agaricales (Gilled Mushrooms)
Family	Unionidae	Pleurotaceae
Genus	Alasmidonta	Pleurotus
Species	Alasmidonta varicosa	Pleurotus eryngii

Conservation Status

Brook Floater

VU — Vulnerable

King Oyster

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	King Oyster
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

King Oyster

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Found in Norway.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.